Incandescent-electric-light hanger



' (No Modem H. P. BROWN.

INGANDBSGENT ELECTRIC LIGHT HANGER.

No. 347,767. Patented Aug. 24, 1886.

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UNITED STATES PATENT HAROLD P. BROWN, OF CHICAGO, ILLINOIS.

INCANDESCENT-ELECTRlC-LIGHT HANGER.

SPECIFICATION forming part of Letters Patent No 347,767, dated August 24, 1886.

Application filed March 6, 1886. Serial No. 194.194. (No model.)

To all whom it may concern.-

Be it known that I, HAROLD P. BROWN, a citizen of the United States, residing in Ohicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Incandcscent-Electric-Lamp Hangers, of which the following is a specification.

The object of my invention is to provide a lamp-holder of a cheap and durable construction, to or from which the lamp may be easily and quickly attached or disconnected, and which willat the same time afford a good electrical connection for the terminals of the lamp.

In the accompanying drawings, which form a part of this specification, and in which similar letters of reference indicate like parts, Figure l is aside elevation of a device embodying my invention. Figs. 2 and 3 are face views of the two clamp-blocks forming the body of the holder. Fig. 4 is a central longitudinal section. Fig. 5 is a detail sectional view showing the clamp-blocks and spring contact-strips in position for inserting or removing the lamps. Fig. 6 is a cross section of the switch or turn-off plug. Fig. 7 is an elevation of the inclosing shell or case, and Fig. 8 is a detail view of the bearing-piece for the shaft of said plug.

In said drawings, A represents an incandescent lamp. and a a are its terminals or eyes, by which it is electrically connected in circuit, as Well as supported.

B is the outer shell or case of the holder, preferably of cylindrical form with open ends.

0 is a cap-piece, preferably of conical form, having a central opening, 0, for the circuitwires, and furnished with screws 0, the heads of which fit over suitable slots, 1), in the shell B, by which said shell is attached to said cap Gin such manner that the two parts may be readily put together or disengaged from each other.

D and D are two clamp-blocks or semi-cylindrical pieces, fitting in the shell B, and between which or the contact strips secured thereto the terminals (1 a of the lamp are embraced. The blocks D D should he made of wood or suitable insulating material. The

block D is furnished with longitudinal re.- cesses or grooves, in which are secured by suit able screws the spring contact-strips or pieces d, d, and (1 the c0ntaet-picces d and (1 being securely connected with the circuit-wires E E.

F is a switch or turn-off plug, preferably of square or rectangular form in cross-section, secured to the shaft F. The plug F is best made of rubber or other insulating material, and provided with metal contact-platesff on two of its opposite faces. These metal plates ffshould not quite cover the faces of the plug, so that when the plug is turned the edges of these plates cannot touch the contactstrips d or (11. The ends of the spring-contacts d d are bent up and rest upon the plug F, as indicated in Figs. 3 and 4. The plates ff may be conveniently secured to the plug F by rivetsf, extending through said plug. The shaft F is furnished with a turn-off button or handle, F and is journaled in a metal strap or partial hand, G, which encircles the block D, and is secured thereto by suitable screws. This bearing-plate has a hole or opening, 9, at one edge to receive the free end of the shaft F, and a suitable slot, g, at'its other edge, which affords a bearing for the other end of the shaft F. By using a slot, 9, to receive the shaft F at its handle end, said shaft may be readily placed in position after the switch-plug F is secured upon said shaft. The spring contactpieces d and (Z beari ng against the plug F, wi ll serve to hold the shaft in position in the slotted bearing g. The hole .or'bearing g and the slot 9 should be somewhat smaller than the shaft F, and the ends of said shaft correspondingly reduced in size to form shoulders f f, and thus hold the shaft in posit-ion longitudinally. The blocks D and D are furnished with transverse recesses to give room for the plugF and its shaft.

The elamp-block D is provided with metal or spring clamp-strips d d, which are secured in longitudinal recesses in said block. The free ends of these flat springs a cl are provided with openings. through which project the ends of the pins d (1*. The eyes a a of the lamp fit over the pins (1 (1 when the clampblocks D D are pressed together, and said forced together in any suitable manner. I-

prefer, however, to employ a spiral spring, H, encircling said clamp-blocks near their end, and fitting in circular slots 1) b, cut in the shell B, so that the spring will press against the blocks D D. To loosen the clamps the spring H is simply pushed or rolled back out of the slots 1) 1) onto the shell B, so that the spring will not bear on the blocks D D.

The shell or case B is provided with a longitudinal slot, b on one side, to fit over the shaft F, and thus permit the shell to be conveniently slipped over the blocks D D.

K K are guards secured to the rim of the shell B. Each of these guards K is preferably made of a single piece of spring-wire bent into the form shown in Figs. 1 and 5, the two ends of the wire being inserted through suit able holes in the rim of the shell B and riveted thereto. The lower middle portion of the guard, which bears against the glass case or globe of the lamp, is curved to conform to the shape or curve of said lamp case or globe. These spring-guards K, on opposite sides of the lamp, clamp and brace it between them andserve to steady it.

The flat springs d d, in connection with the flat contact-strips d d, form a good electric connection for the terminals of the lamp. as they clamp the fiat eyes or loops firmly between them.

I claim 1. In an electric-lamp holder, the combination, with an inclosing case or shell, of two insulating clamp-blocks, a turn-ofl' plug having a shaft journaledon one of said clamp-blocks, and a spring-contact connected with said'plng and the Iampcircuit, substantially as speri fied.

2. In an electric-lamp holder, the combination,with an inclosing case or shell, of two insulating clamp-blocks, a turn-off plug having a shaft journaled on one of said clamp-blocks, and aspring-contact connected with said plug and the lampcircuit, one of said clamp-blocks being provided with pins or lugs d d, for the lamp-terminals, and springs d d, for disengaging said terminals from said pins, substantially as specified.

3. The combination, in an incandescent-lamp holder, ofa shell, B, having slots b, with cap 0, provided with screws 0", and clamp-blocks D and D, furnished with contact pieces con nected with the lamp-circuit fitting in said shell, substantially as specified.

4. The combination,with clamp-blocksD D, ofaninclosing-shell,B,andaturn-ofi'plugjournaled on one of said clamp-blocks, said shell B being provided with a slot, b, to fit over the shaft of said turn-oil plug, substantially as specified.

5. The combination, with shell B,havin g slot b of clamp blocks D and D, turn-off plug F, shaft F, and bearing-plate G, secured to said block D, substantially as specified. 6

6. The combination, with a pair of clamps furnished with contact-strips, of an incandescent lamp furnished with terminals embraced between said. clamps, said contactstrips being connected with the terminals of said lamp, substantially as specified.

7. The combination, with clamp-blocks D and D, of contacts d d, adapted to be clamped against the terminals of an incandescent lamp by said clamp-blocks, substantially as speci- 7 fied.

8. The combination,with clampblocksDand D, of inclosing'shell B and contact-st-rips d, d, and J, connected with the terminals of the lamp, substantially as specified.

9. The combination,with clamp-blocksDand D, ofinclosing-shell B, turn-oflplug F, and contact-strips d, d, and J, substantially as specified.

10. The combination, with the shell'B, of 3 the spring-guards K K, secured to the lower rim of said shell and embracing the lamp, substantially as specified.

11. The combination. with shell B, having slot b, of clamp-blocks D and D, turn-otfplug 9 F, shaft F, and bearing-plate G, secured to said block D, said bearing-plate G having a slot, 9, for a bearing for said shaft at one end, substantially as specified.

12. The combination. with shell B, having slot b, of clamp-blocks D and D, turn off plug F, shaft F, bearing-plate G, secured to said block D, and spring contact-pieces d and d", substantially as specified.

13. The combination,with a shell, of a pair I of clamp-blocks fitting in the same, and flat 'contactpieces d d d, flat strips d d, and a turn-ofi plug, substantially as specified.

14. The combination,with a pair of clamps, one of said clamps being furnished with alamp 1 eye retaining pin or projection, of a spring to release said eye from said pin when the clamp-pressure is released, substantially as specified.

15. The combinatiomwith a pair of clamps, l of an inclosing-shell, B, having transverse slots 1) b" thereon, and a spring, H, surrounding said shell and fitting in said slots, substantially as specified.

16.Thecombination,withclamp-blocksDD, I of contacts d d d, turn-oifplug F,having metal facesff, shell B, having slot bfland spring H,

substantially as specified.

HAROLD I. BROVN.

Vitnesses:

H. M. MUNDAY, J OHN \V. BIUNDAY. 

